TIDUF63
December
2023
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1
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Description
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Resources
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Features
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Applications
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6
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1System Description
- 1.1
PV or Battery Input With DC/DC
Converter
- 1.2
Isolation and CLLLC Converter
- 1.3
DC/AC Converter
- 1.4
Key System Specifications
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2System Design Theory
- 2.1
Boost Converter Design
- 2.2
MPPT Operation
- 2.3
CLLLC Converter Design
- 2.3.1
Achieving Zero Voltage Switching (ZVS)
- 2.3.2
Resonant Tank Design
- 2.4
DC/AC Converter Design
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3System Overview
- 3.1
Block Diagram
- 3.2
Design Considerations
- 3.2.1
DC/DC Converter
- 3.2.1.1
Input Current and Voltage Senses and
MPPT
- 3.2.1.2
Inrush Current Limit
- 3.2.2
CLLLC Converter
- 3.2.2.1
Low-Voltage Side
- 3.2.2.2
High-Voltage Side
- 3.2.3
DC/AC Converter
- 3.2.3.1
Active Components Selection
- 3.2.3.1.1
High-Frequency FETs: GaN FETs
- 3.2.3.1.2
Isolated Power Supply
- 3.2.3.1.3
Low-Frequency FETs
- 3.2.3.2
Passive Components Selection
- 3.2.3.2.1
Boost Inductor Selection
- 3.2.3.2.2
Cx Capacitance Selection
- 3.2.3.2.3
EMI Filter Design
- 3.2.3.2.4
DC-Link Output Capacitance
- 3.2.3.3
Voltage and Current Measurements
- 3.3
Highlighted Products
- 3.3.1
TMDSCNCD280039C - TMS320F280039C
Evaluation Module C2000™ MCU controlCARD™
- 3.3.2
LMG3522R050 - 650-V 50-mΩ GaN FET With Integrated Driver
- 3.3.3
LMG2100R044 - 100-V, 35-A GaN Half-Bridge Power Stage
- 3.3.4
TMCS1123 - Precision Hall-Effect Current Sensor
- 3.3.5
AMC1302 - Precision, ±50-mV Input, Reinforced Isolated Amplifier
- 3.3.6
AMC3330 - Precision, ±1-V Input, Reinforced Isolated Amplifier With Integrated DC/DC Converter
- 3.3.7
AMC1311 - High-Impedance, 2-V Input, Reinforced Isolated Amplifier
- 3.3.8
ISO6741 - General-Purpose Reinforced Quad-Channel Digital Isolators with Robust EMC
- 3.3.9
UCC21540 - Reinforced Isolation
Dual-Channel Gate Driver
- 3.3.10
LM5164 - 100-V Input, 1-A Synchronous Buck DC/DC Converter with Ultra-low IQ
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4Hardware, Software, Testing Requirements,
and Test Results
- 4.1
Hardware Requirements
- 4.2
Test Setup
- 4.2.1
DC/DC Board
- 4.2.2
DC/AC Board
- 4.3
Test Results
- 4.3.1
Input DC/DC Boost Results
- 4.3.2
CLLLC Results
- 4.3.3
DC/AC Results
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5Design and Documentation Support
- 5.1
Design Files
- 5.1.1
Schematics
- 5.1.2
BOM
- 5.2
Tools and Software
- 5.3
Documentation Support
- 5.4
Support Resources
- 5.5
Trademarks
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6About the Author
5.3 Documentation Support